# VDOT Running Calculator

> Health & Fitness

Canonical page: [https://chrome-stats.com/d/id973571014](https://chrome-stats.com/d/id973571014)

## Overview

- **ID:** `id973571014`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** The Run SMART Project, LLC
- **Category:** Health & Fitness
- **Rating:** 4.90 / 5 (1,557 ratings)
- **Version:** 2.18
- **Last updated:** 2026-01-08
- **First published:** 2015-03-12
- **Size:** 44 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/vdot-running-calculator/id973571014)
- **Website:** [https://vdoto2.com/user/signup](https://vdoto2.com/user/signup)
- **Privacy policy:** [https://vdoto2.com/privacy](https://vdoto2.com/privacy)

## Description

The official VDOT Running Calculator extension brings Dr. Jack Daniels’ scientifically grounded pace guidance to your browser. Built by the VDOT O2 team, it condenses more than 50 years of running research into an easy-to-use tool that helps runners and coaches estimate training paces, compare race performances, and adjust plans for heat and altitude.

Features include calculating time, distance, and race paces; identifying your current training paces; translating race results into equivalent performances at other distances; and modeling how temperature or altitude affects paces. The VDOT scale lets you gauge your level—from Beginner to Professional—and see how past results translate to future performances.

## Rankings

- #44,058 — Overall

## Review summary

Users praise VDOT Running Calculator for easy use and solid pace guidance based on Jack Daniels' VDOT, especially useful on the go. However, repeated issues dampen the experience: frequent crashes and instability, especially around updates and custom distances; premium gating with a daily calculation cap; lack of data persistence across sessions requiring re-entry of race data; missing full workout definitions and visibility; and limited/custom distance support and input options. Overall, it's a powerful pacing tool when stable and feature-complete, but reliability and feature gaps hinder long-term use.

### Pros

- Easy to use and lightweight interface that is quick to boot up
- Helps set training paces accurately using Jack Daniels' VDOT, aiding progression
- Useful on-the-go reference for training paces and coaching others
- Credible pacing tool based on Jack Daniels' formulas, which many users find impactful for performance improvement
- Positive sentiment about its simplicity and straightforward workflow

### Cons

- Frequent crashes and stability issues, including after updates and when using custom distances
- Premium gating with a daily limit (3 calculations) and perceived high cost for full features
- Lack of data persistence between sessions (must re-enter race data each time)
- Missing full workout definitions and visibility (definitions are truncated or unavailable)
- Limited/custom distance support and input options (difficulty setting custom distances or times)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id973571014)